(under subclass 227) Apparatus in which the work supporting or heat applying structure comprises a drum having within it a source of heat, and the exterior of which is adapted to support work and to apply heat to the supported work.
SEE OR SEARCH THIS CLASS, SUBCLASS:
60, for a residual heating structure that advances and flexes a sheet, web or strand and that includes an internally heated roll.
SEE OR SEARCH CLASS
34, Drying and Gas or Vapor Contact With Solids,
110+, for a rotary drum type drier in which the work is treated by the drum exterior. See the search note to the
class definition of Class 432 for the line between Classes 34 and 432. 38, Textiles: Ironing or Smoothing,
44+, for a textile ironing or smoothing machine of the roller press type and subclasses 100+ for a roller type smoothing implement.
118, Coating Apparatus,
60, for coating apparatus including a heated roll for treating the work.
126, Stoves and Furnaces,
410, for a heated, roll type, hand manipulatable heating tool.
159, Concentrating Evaporators,
11.1, for a concentrating evaporator using a rotary drum or disk as a moving film support for the material being concentrated.
165, Heat Exchange,
90+, for a heat exchanger of the rotary drum type.
219, Electric Heating,
469+, for a roller specialized for heating by electricity that supports and heats material. 492, Roll or Roller, for a roll, per se, not elsewhere provided for, and see the search notes thereunder.
